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Cisco Aironet 1552 Series for Hazardous Locations Installation Guide

Chapter 4 Troubleshooting

Access Point Power Injector

Caution

Caution: Power injector (AIR-PWRINJ1500-2=) is not certified for installation within hazardous
locations environments.

Figure 4-3

Power Injector Connectors and LEDs

Mounting tabs

AC POWER LED

AP POWER LED

TO AP—Ethernet connector (RJ-45) to access point
(10/100/1000BASE-T)

FAULT LED

TO SWITCH—Ethernet connector (RJ-45) to switch
(10/100/1000BASE-T)

211485

231484

Summary of Contents for 1552 Series

Page 1: ...rs Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide April 2019 ...

Page 2: ... implementation of TCP header compression is an adaptation of a program developed by the University of California Berkeley UCB as part of UCB s public domain version of the UNIX operating system All rights reserved Copyright 1981 Regents of the University of California NOTWITHSTANDING ANY OTHER WARRANTY HEREIN ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED AS IS WITH ALL FAULTS CI...

Page 3: ...ty Guidelines for the WirelessHART Gateway xi C H A P T E R 1 Overview 1 1 About the Cisco 1552 Access Point 1 1 Hardware Models 1 2 Regulatory Domains 1 6 Hardware Features 1 6 Connectors 1 7 1552H 1 7 1552SA SD 1 8 1552WU 1 9 Console Connector 1 10 DC Power Connector 1 11 1552 Antenna Ports 1 11 1552SA SD Antenna Ports 1 13 1552WU Antenna Ports 1 13 Multiple Radio Operation 1 14 Antenna Configur...

Page 4: ...ge to Radios in a Testing Environment 2 35 Additional Considerations for Hazardous Locations 2 35 Warnings 2 36 Compliance 2 38 KOSHA Certificate Information for Korean hazardous locations 2 39 Installation Guidelines 2 39 Site Surveys 2 40 Before Beginning the Installation 2 40 Becoming Familiar with Access Point Installation Components 2 41 Antenna N Type Connector Locations 2 43 Adding the Acce...

Page 5: ...3 71 Connecting a 1552H Series Power Injector 3 71 Connecting an Ethernet Cable to the Access Point all models 3 73 Connecting a 24 VDC Power Cable to the Access Point 3 75 Connecting Ground and AC Power 3 77 Performing Maintenance 3 79 Removing the Access Point from Service 3 80 Conducting Periodic Inspections 3 80 Conducting Periodic Cleaning 3 80 What to Do Next 3 80 C H A P T E R 4 Troubleshoo...

Page 6: ...onet Access Points in Brazil B 7 Access Point Models B 7 Regulatory Information B 7 Declaration of Conformity for RF Exposure B 8 United States B 8 Canada B 8 European Union B 8 Australia B 8 Guidelines for Operating Cisco Aironet Access Points in Japan B 9 Japanese Translation B 9 English Translation B 9 Japanese Translation B 10 English Translation B 10 VCCI Statement for Japan B 10 Administrati...

Page 7: ... I X C Channels and Power Levels C 15 A P P E N D I X D Access Point Specifications D 17 A P P E N D I X E Access Point Pinouts E 25 A P P E N D I X F Configuring DHCP Option 43 F 27 Overview F 28 Configuring Option 43 for 1100 1130 1200 1240 1250 1300 1520 and 1550 Series Access Points F 29 ...

Page 8: ...Contents 8 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide ...

Page 9: ...rm that supports dual band 2 4 GHz and 5 GHz operation Audience This publication is for the person installing and configuring an access point for the first time The installer should be familiar with network structures terms and concepts Warning Only trained and qualified personnel should be allowed to install replace or service this equipment Statement 1030 Warning For Nordic countries Norway Finl...

Page 10: ...e access point Appendix A Translated Safety Warnings Indicates how to access the document that provides translations of the safety warnings that appear in this publication Appendix B Declarations of Conformity and Regulatory Information Describes the regulatory conventions to which the access point conforms and provides guidelines for operating access points in Japan Appendix C Channels and Power ...

Page 11: ...en font Terminal sessions and information the system displays are in screen font boldface screen font Information you must enter is in boldface screen font italic screen font Arguments for which you supply values are in italic screen font The symbol represents the key labeled Control For example the key combination D in a screen display means hold down the Control key while you press the D key Non...

Page 12: ...lick Standalone Controllers listed under Wireless LAN Controllers The documentation can be accessed from the Support box Finding the Product Serial Number The access point serial number is on the bottom of the access point refer to Figure 1 Figure 1 Location of Serial Number Label The access point serial number label contains the following information Model number such as AIR CAP1552SA SD x K9 Ser...

Page 13: ...hatsnew whatsnew html To view all new wireless documentation click on Wireless Obtaining Documentation Support and Security Guidelines for the WirelessHART Gateway The WirelessHART Gateway is supported by Emerson Process Management Global Service Center Software and Integration Support 1 800 833 8314 United States 63 2 702 1111 International Customer Central Technical support quoting and order rel...

Page 14: ...xii Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Preface ...

Page 15: ...hat can be attached with a bracket or pole mounted with an optional kit The access point can also operate as a relay node for other access points not directly connected to a wired network Intelligent wireless routing is provided by the patented Cisco Adaptive Wireless Path Protocol AWPP This enables each access point to identify its neighbors and intelligently choose the optimal path to the wired ...

Page 16: ...co Aironet 1552 Outdoor Mesh Access Points for Hazardous Locations are described in Table 1 1 A detailed list of components supported by each 1552 access point model is shown in Table 1 2 For a detailed description of the declarations of conformity and regulatory information for the 1552 access points refer to Appendix B Declarations of Conformity and Regulatory Information 1552H Model ...

Page 17: ...1 3 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Chapter 1 Overview Hardware Models 1552S Model ...

Page 18: ...1 4 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Chapter 1 Overview Hardware Models 1552WU Model ...

Page 19: ...ith the model This model also supports two ISA100 Wireless and WirelessHART Multiprotocol radios with 2 additional external omnidirectional antennas for connections to 802 15 4 sensor network transceivers Countries regulatory domains represented by the variable x are described at http www cisco com en US prod collateral wireless ps56 79 ps5861 product_data_sheet0900aecd80537b6a html SA models supp...

Page 20: ...com en US prod collateral wireless ps5679 ps5861 product_data_sheet0900aecd805 37b6a html To locate the 1552 access point models click on 802 11abgn Mesh Access Points Hardware Features This section describes the hardware features of the 1552 access point models The following hardware features are described in this section Connectors page 1 7 1552H 1552SA 1552SD 1552WU Antennas External External E...

Page 21: ... connectors Note The illustrations in this document show all available connections for the access point Unused connections are capped with a connector plug to ensure the watertight integrity of the access point Liquid tight adapters are provided for connector openings which can be installed before or after deploying the access point Caution The liquid tight adapter s supplied in the kit are IP68 6...

Page 22: ...ort 5 7 PoE Out port PG 13 5 thread 3 Antenna port 6 8 LEDs Status Up Link RF1 RF2 4 AC power entry port 1 2 NPT thread for model AIR CAP1552H x K9 only or Cable Gland entry 1 2 NPT thread 9 PoE In port PG 13 5 thread for data cable outdoor cat 5 STP cable 5 Not used 4 1 3 2 5 6 8 7 331096 1 Antenna port 4 ISA100 Wireless and WirelessHART 5 Not used 2 IR window 6 PoE Out port PG13 5 Thread 3 Anten...

Page 23: ...552WUx K9 Bottom Connectors 1 Antenna port 4 2 4 GHz Tx Rx 6 Not Used 2 Antenna port 5 2 4 GHz Rx 7 PoE Out port PG 13 5 thread 3 Antenna port 6 2 4 GHz Tx Rx 8 LEDs Status Up Link RF1 RF2 4 24 VDC power input port or Cable Gland entry 1 2 NPT thread 9 Ethernet PG 13 5 thread for data cable outdoor cat 5 STP cable 5 Not used 4 5 6 282137 1 2 3 4 5 6 7 8 9 ...

Page 24: ...res Console Connector Figure 1 4 Console Port for Access Point Model AIR CAP1552H x K9 and AIR CAP1552SA SD x K9 Figure 1 5 Console Port for Access Point Model AIR CAP1552WU x K9 1 Console port 2 Not used on the H model Fiber port on the S model 5 8 24UNEF 2B 282138 1 2 1 Console port internal on the 1552WU ...

Page 25: ...and Ground Lug All Models 1552 Antenna Ports Figure 1 7 shows the antenna port locations for model AIR CAP1552H x K9 1 12 VDC non hazardous locations input port PG 13 5 thread size 3 Bracket mounting hole M8x1 25 x 12mm dp 2 Bracket mounting hole M8x1 25 x 12mm dp 4 Ground lug location connection for earth grounding minimum VD 16 mm 6 awg M4x 7 30 THD Depth 1 2 3 4 331098 ...

Page 26: ...isco Aironet 1552 Series for Hazardous Locations Installation Guide Chapter 1 Overview Hardware Features Figure 1 7 External Antenna Port Locations for Access Point Model AIR CAP1552H x K9 255247 1 2 3 4 5 6 ...

Page 27: ...cations for model AIR CAP1552WU x K9 1 Not used 4 Antenna port 6 Type N connector 2 4 5 GHz Tx Rx 2 Not used 5 Antenna port 5 Type N connector 2 4 5 GHz Rx 3 Not used 6 Antenna port 4 Type N connector 2 4 5 GHz Tx Rx 1 Antenna port 1 Type N connector Wi Fi 2 4 5 GHz TX RX 4 Antenna port 6 Type N connector ISA100 Wireless and WirelessHART 2 4 GHz TX RX 2 Antenna port 2 Type N connector Wi Fi 2 4 5 ...

Page 28: ...an It has two transmitters with a maximum total output power of 28 dBm for 802 11b g n operation Output power is configurable to 5 levels It has three receivers that enable maximum ratio combining MRC 1 Antenna port 1 Type N connector Single Band 5 GHz TX RX 4 Antenna port 4 Type N connector Single Band 2 4 GHz TX RX 2 Antenna port 2 Type N connector Single Band 5 GHz RX 5 Antenna port 5 Type N co...

Page 29: ...odels and configuration information Note The WirelessHART Antenna must be installed a minimum of 3 feet from any other antenna including the other Wi Fi antennas attached to the Access Point Follow all safety precautions when installing the antennas For information on safety refer to Safety Precautions section on page 1 18 Number of Antennas Part Number Description Gain 1552H 1552SA 1552SD 1552WU ...

Page 30: ...es Figure 1 10 Cisco Aironet Dual Band Omnidirectional Antenna Installed on Model AIR CAP1552H x K9 1 Antenna connected to antenna port 4 Type N connector Wi Fi TX RX 2 Antenna connected to antenna port 5 Type N connector Wi Fi RX 3 Antenna connected to antenna port 6 Type N connector Wi Fi TX RX 1 2 3 282145 ...

Page 31: ...idirectional Antenna Installed on Model AIR CAP1552SA SD x K9 5 4 1 2 3 331099 1 Antenna port 1 Type N connector Wi Fi 2 4 5 GHz TX RX 4 Antenna port 6 Type N connector ISA100 Wireless and WirelessHART 2 4 GHz TX RX 2 Antenna port 2 Type N connector Wi Fi 2 4 5 GHz RX 5 Antenna port 4 Type N connector ISA100 Wireless and WirelessHART 2 4 GHz RX 3 Antenna port 3 Type N connector Wi Fi 2 4 5 GHz TX ...

Page 32: ... your installation site with safety as well as best performance in mind Remember that electric power lines and phone lines look alike For your safety assume that any overhead line can kill you 3 Contact your electric power company Tell them your plans and ask them to come look at your proposed installation 4 Plan your installation carefully and completely before you begin Each person involved in a...

Page 33: ... requirements in IEC 60950 based safety standards Statement 1033 Note This warning only applies to DC input sources and is not applicable if an AC power source is used The 1552 access point for hazardous locations can be connected to more than one power source The access point detects the available power sources and switches to the preferred power source using the following priority 1 AC power or ...

Page 34: ...thernet cable is used to send and receive Ethernet data and to optionally supply inline 56 VDC power from the power injector Note When a 1552H access point is powered by PoE the PoE Out port is not active The access point PoE Out 10 100 1000BASE T port uses an RJ 45 connector to provide LAN connectivity and IEEE 802 3af power to a single peripheral customer device such as a camera or sensor gatewa...

Page 35: ...strial temperature operating range of 40 to 131 F 40 to 55 C The access point complies with NEMA 4 and IP67 requirements Optional Hardware Depending on the order configuration the following optional access point hardware may be part of the shipment Cisco Aironet Antennas Pole mount kits AIR ACCPMK1550 AIR ACCPMK1550HZM Band installation tool for pole mount kit AIR BAND INS TL Power injector AIR PW...

Page 36: ... and finally to a RAP with an Ethernet or cable connection through a switch to the controller MAPs can also have a wired Ethernet connection to a local LAN and serve as a bridge endpoint for that LAN using a point to point or point to multipoint bridge connection Wireless Backhaul The access point supports wireless backhaul capability Depending on the version of software being used these links can...

Page 37: ...suitable for direct wireless client access Figure 1 14 Access Point Point to Point Bridging Example Point to Multipoint Bridging The access points can be used as a RAP to connect multiple remote MAPs with their associated wired networks or with 2 4 GHz or 5 GHz radio By default this capability is turned off for all access points To support Ethernet bridging you must enable bridging on the controll...

Page 38: ...by calculating the cost of each path in terms of signal strength and the number of hops required to get to a controller with signal strength given priority since signal strength determines the data rate available for backhaul Figure 1 16 illustrates a typical mesh configuration using MAPs and RAPs Figure 1 16 Typical Mesh Configuration Using Cisco 1552SA 1552SD Access Points with Sensors The Cisco...

Page 39: ...1552 Series for Hazardous Locations Installation Guide Chapter 1 Overview Hardware Features Refer to to Honeywell OneWireless Network Multiprotocol Wireless IO System documentation on www honeywell com for further details ...

Page 40: ...ensors Table 1 4 The default IP addresses for the WirelessHART Gateway are The WirelessHART Gateway can be configured using a standard web browser and accessing the Gateway s internal webpage URL https 192 168 1 10 For this to work the 1552WU must be configured to pass traffic to the WirelessHART Gateway s IP address Table 1 5 Security Passwords IP Address Netmask Notes Ethernet 1 192 168 1 10 255...

Page 41: ...or technical support To change the User Accounts Passwords Step 1 Navigate to Setup Security User accounts Step 2 Set the new password for each role based user account and confirm Step 3 Click Submit Role User Name Web Interface Access Executive exec Read only access Operator oper Read only access Maintenance maint Configure HART device settings Configure Modbus communications Configure Modbus reg...

Page 42: ...ation Access points and controllers in Layer 3 configurations use IP addresses and UDP packets which can be routed through large networks Layer 3 operation is scalable and recommended by Cisco Figure 1 18 illustrates a typical Layer 3 wireless network configuration containing access points and a controller Figure 1 18 Typical Layer 3 Access Point Network Configuration Example 148458 ...

Page 43: ...before beginning the installation of your Access Point and contains the following sections Unpacking the Access Point page 2 30 Tools and Hardware page 2 30 Warnings page 2 32 Safety Information page 2 32 Avoiding Damage to Radios in a Testing Environment page 2 35 Additional Considerations for Hazardous Locations page 2 35 Installation Guidelines page 2 39 ...

Page 44: ...he following items Access point Cisco product documentation and translated safety warnings Two pin DC power connector Ground lug Panduit PLCD6 10A L and screws with lock washers Watertight cable glands for Power over Ethernet PoE ports depending on the 1552 access point model 2 or 3 cable glands are provided Note These cable glands are NOT hazardous locations Ex certified Tools and Hardware The to...

Page 45: ... 89 cm diameter Optional Ethernet RJ 45 connector and installation tool Optional shielded outdoor rated DC power cable with 0 20 to 0 35 inch 0 51 to 0 89 cm diameter Optional ground rod as required by local regulations Optional ladder power lift rope or other tools as required Pole Installation Hardware and Tools To install the access point on a vertical or horizontal metal wood or fiberglass pol...

Page 46: ...ion by the local authority inspection department Warning Do not operate the unit near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use Statement 364 Caution The cables specified in this installation guide that are used with the specified liquid tight adapters provide protection against ingress of moisture for a Type...

Page 47: ... replacing the unit Statement 1082 Warning In order to comply with FCC radio frequency RF exposure limits antennas should be located at a minimum of 7 9 inches 20 cm or more from the body of all persons Statement 332 Warning The AC power supply has double pole neutral fusing Statement 188 Warning Do not work on the system or connect or disconnect cables during periods of lightning activity Stateme...

Page 48: ...able service disconnect For safety and to achieve a good installation please read and follow these safety precautions Select your installation site with safety as well as performance in mind Remember electric power lines and phone lines look alike For safety assume that any overhead line can kill Call your electric power company Tell them your plans and ask them to come look at your proposed insta...

Page 49: ...or a radiated test bed the following equation describes the relationships among transmit power antenna gain attenuation and receiver sensitivity txpwr tx gain rx gain attenuation due to antenna spacing max rx input level Where txpwr Radio transmit power level tx gain transmitter antenna gain rx gain receiver antenna gain For a conducted test bed the following equation describes the relationships a...

Page 50: ...rdous location installations has a lower voltage rating 100 240 VAC 50 60 Hz 1A than a non hazardous location installation 100 480 VAC Caution Do not use 12 VDC input connection in hazardous locations Caution Caution Power injector AIR PWRINJ1500 2 is not certified for installation within hazardous locations environments Warnings Warning Do not disconnect connections to this equipment unless power...

Page 51: ...e DC circuit to ensure that the power is removed and cannot be turned on accidentally or verify that the area is nonhazardous before proceeding Statement 1059 Warning Do not connect or disconnect cables to the ports while power is applied to the switch or any device on the network because an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that pow...

Page 52: ...able 2 1 Interpreting the Hazardous Compliance Label Label Text Description Class I Division 2 Groups A B C D Defines the environment in which the access point can be used Class I Environment containing flammable gases vapors or liquids Division 2 Environmental classification used by the U S and Canada Groups A B C D Gas identification for the U S and Canada A Acetylene B Hydrogen C Ethylene D Pro...

Page 53: ...s trees or hills do not obstruct radio signals to and from the access point Ex nA II T5 Defines parameters that the product complies with for U S Certification Ex Denotes explosive atmosphere nA Non sparking II Group II as defined previously T5 Temperature code 100 degrees C maximum surface temperature CSA Certificate 1945576 Identifies the Canadian Standards Association CSA certificate number SIR...

Page 54: ... increases in proportion to antenna height However do not place the antenna higher than necessary because the extra height also increases potential interference from other unlicensed radio systems and decreases the wireless coverage from the ground Physical environment Clear or open areas provide better radio range than closed or filled areas Obstructions Physical obstructions such as buildings tr...

Page 55: ...nt installation see Figure 2 1 Pole mount installation see Figure 2 2 Note The illustrations in this document show all available connections for the access point Unused connections must be capped with a connector plug to ensure the watertight integrity of the access point Liquid tight adapters are provided for connector openings which can be installed before or after deploying the access point Cau...

Page 56: ...fault current protection components used to achieve this protection must comply with the IEC 61643 series of standards To meet CAN CSA C22 2 No 60950 22 07 UL60950 22 requirements the installer may use alternative components to provide this additional protection Those components may comply with ANSI IEEE C62 11 CSA Certification Notice No 516 CSA C22 2 No 1 or UL 1449 Suitability of the components...

Page 57: ...ical wiring methods that comply with the governing electrical codes Adding the Access Point MAC Addresses to the Controller Filter List Before installing your access points configure your controller by adding the MAC addresses of the access points to the filter list MAC address filtering is enabled by default This enables the controller to respond to the listed access points To add a MAC filter en...

Page 58: ...ntroller and close your web browser Configuring a RAP The access point defaults to the mesh access point MAP radio role One or more of your access points must be reconfigured as a root access point RAP The RAPs connect to a wired Ethernet link through a switch to the controller The MAPs use their wireless backhaul interface to connect to a RAP to reach the controller To configure a RAP on the cont...

Page 59: ...tton page 3 69 Rebooting the Access Point page 3 70 Powering the Access Point page 3 71 Performing Maintenance page 3 79 Mounting on a Wall or a Pole This section provides instructions for the physical installation of your access points Personnel installing the access point must understand wireless access points and bridging techniques and grounding methods Caution All installation methods for mou...

Page 60: ...hese sections for installation details Access Point Mounting Orientation page 3 46 Mounting the Access Point on a Wall page 3 46 Mounting the Access Point on a Pole page 3 51 Access Point Mounting Orientation When mounting an access point on a horizontal or vertical surface you must ensure that the access point is oriented with the LED indicators pointing down see Chapter 2 Pole Mount Installation...

Page 61: ...ed to Mount Access Point to a Vertical Wall Materials Required In Kit Ground lug and screws provided with access point Crimping tool for ground lug Panduit CT 720 with CD 720 1 die http onlinecatalog panduit com Four M8 or 5 16 in 31 mm screws Four wall anchors specified for wall material Drill bit for wall anchors Electric drill and standard screwdriver 6 AWG ground wire Shielded outdoor rated Et...

Page 62: ...e BCD is Bolt Circle Diameter To mount the access point on a vertical wall follow these instructions Step 1 Use the mounting bracket as a template to mark four screw hole locations on your mounting surface See Figure 3 1 for the mounting bracket screw hole locations You can optionally use the individual mounting holes or the mounting slots 1 8 49 inches 21 56 cm 2 13 17 inches 33 45 cm 3 4 09 inch...

Page 63: ...ors to attach the mounting plate to the mounting surface Note If necessary use suitable screw anchors and an exterior grade plywood backboard to mount the access point to stucco cement or drywall Step 3 Screw a M8 x16 bolt in the top support bolt hole on each side the access point see Figure 3 2 Do not screw the bolt all the way in leave approximately a 0 25 inch 0 635 cm space 1 Access point quic...

Page 64: ... bolt with flat and lock washers into the second bolt hole on each side of the access point Step 6 Ensure that the front of the access point is vertical and tighten the four bolts to 13 to 15 ft lbs 17 6 to 20 3 Nm Step 7 When using the Cisco Aironet Dual Band Omnidirectional Antennas connect them to the access point as shown in Figure 3 2 Hand tighten the antennas to the access point Step 8 Conti...

Page 65: ...tional Cisco pole mount kit The kit supports metal wood or fiberglass poles from 2 to 16 inches in diameter The pole mount kit contains several parts that you must assemble prior to mounting on a pole First you need to assemble two strap brackets on the pole clamp bracket that are positioned for the pole diameter you are using to mount the access point Figure 3 3 illustrates the pole diameter indi...

Page 66: ...each strap bracket with two M8 x16 bolts with lock washers see Figure 3 4 Tighten the bolts to 13 to 15 ft lbs 17 6 to 20 3 Nm Figure 3 4 Assembled Pole Clamp Bracket and Strap Brackets Step 2 Screw the M8 nut onto the pole clamp bracket support bolt and tighten just enough to prevent the bolt from falling off Step 3 Go to the Pole Mounting section on page 3 53 1 M8 x1 25x16 bolts with lock washer...

Page 67: ...eetlight pole follow these steps Step 1 Select a mounting location on the pole to mount the access point You can attach the access point to any pole from 2 to 16 inch 5 1 to 40 6 cm in diameter Note If you will be using a streetlight power tap adapter position the access point within 3 ft 1 m of the outdoor light control Step 2 For poles larger than 3 5 inch 8 9 cm mount the pole clamp bracket ass...

Page 68: ...meters of 3 5 inch 8 9 cm or less mount the pole clamp bracket assembly to a pole using two metal straps looped through the space between the pole clamp bracket and the strap brackets see Figure 3 6 to provide maximum holding strength for extreme environments Following the instructions provided with the banding strap tool BAND IT AIR BAND INST TL loop each metal strap twice 1 Pole clamp bracket 3 ...

Page 69: ...ore tightening the metal bands Note When the metal bands are tightened to the full tension the pole clamp bracket cannot be adjusted unless the metal bands are cut or disassembled Step 5 Tighten the metal bands using the banding strap tool BAND IT Cisco AIR BAND INST TL by following the operating instructions in the box with the tool Ensure that the metal bands are as tight as possible Step 6 Plac...

Page 70: ... Adjust the top edge of the mounting bracket until it is horizontal and tighten the bolts and the flange nut see Figure 3 7 to 13 to 15 ft lbs 17 6 to 20 3 Nm Note The mounting bracket can be adjusted up to 45o to compensate for tilted horizontal streetlight poles Step 11 Screw a M8 x16 bolt without a flat or lock washer in the top support bolt hole on each side the access point see Figure 3 8 Do ...

Page 71: ...Position the two bolts on the access point into the access point quick mount notch on the mounting bracket see Figure 3 9 Note The access point should be positioned with the LEDs on the bottom to allow viewing from the ground and with the hinged cover facing out 1 Ground lug screw holes location M4x 7 3 Second M8 x16 bolt hole location 2 M8 x16 bolt hole bolts are supplied with pole mount kit inst...

Page 72: ...ual Band Omnidirectional Antennas connect them to the access point as shown in Figure 3 9 Hand tighten the antennas to the access point Step 16 Continue with the Grounding the Access Point all models section on page 3 60 and the Powering the Access Point section on page 3 71 Working with the Access Point Hinged Cover This section details opening and closing the protective cover Opening the Access ...

Page 73: ... the cover does not open easily carefully loosen the hinge bolts again Figure 3 10 Access Point Front View of Hinged Cover Closing the Access Point Hinged Cover To close the access point cover follow these steps Step 1 When closing the access point cover be careful not to pinch internal wires Step 2 Carefully position the cover flush with all sides of the access point then slowly hand tighten each...

Page 74: ...re uncertain that suitable grounding is available Statement 366 Warning Installation of the equipment must comply with local and national electrical codes Statement 1074 In all outdoor installations and when powering the access point with AC power you must follow these instructions to properly ground the case Step 1 If using insulated 6 AWG copper ground wire strip the insulation as required for t...

Page 75: ...0 FIB REEL enables the 1552H access point to support fiber optic network connections The kit contains these parts Eight screws 2 56 x 75 in to attach reels Two small take up reels Two large take up reels Liquid tight adapter s Accepts a cable diameter of 0 20 to 0 35 inches 0 51 to 0 89 cm Caution The liquid tight adapter s supplied in the kit AIR 1520 FIB REEL are IP68 69 certified with 200 to 35...

Page 76: ...the Opening the Access Point Hinged Cover section on page 3 58 for instructions Step 3 Place the two large reels with the small reels on top as shown in Figure 3 12 Step 4 Align the screw holes in the large and small reels and insert four attachment screws in each of the reel pairs Tighten the screws to 3 to 4 in lbs 0 34 to 0 45 Nm Step 5 Remove the plug from the end of the SFP module and insert ...

Page 77: ... cable connector into the rounded end of the liquid tight adapter see Figure 3 13 and push through the adapter Step 11 Wrap excess fiber optic cable around the take up reels in a figure eight 8 pattern Step 12 Insert the fiber optic LC cable connector into the SFP module Step 13 Use an adjustable or open end wrench to tighten the round end of the adapter to 2 7 to 3 2 ft lbs 3 66 to 4 34 Nm Step 1...

Page 78: ...552S models The installation may require the use of junction boxes which have Ex certifications Cisco does not supply these but recommends either the GRT50 or ERT50 models as shown in Figure 3 14 Figure 3 14 Junction Boxes Note The SFP module is a separate orderable item Refer to the ordering guide for applicable SFP options Warning Class 1 laser product Statement 1008 Note You need a customer sup...

Page 79: ...1552SA or 1552SD access point follow these steps Step 1 Ensure that all power sources have been disconnected from the access point Warning This unit might have more than one power supply connection All connections must be removed to de energize the unit Statement 1028 Step 2 Open the hinged cover see the Opening the Access Point Hinged Cover section on page 3 58 for instructions Step 3 Align the r...

Page 80: ... are coming from the same area externally route both through the AC DC port If fiber and power are coming from different areas externally route them through one of the recommended junction boxes The rest of this procedure will show routing through an ETRT50 junction box 1 Reel bracket 2 Two screws for attaching reel bracket to AP 4 40 x 25 in 3 Two fiber reels 4 Eight screws four to attach each re...

Page 81: ...on Details for the 1552SA and 1552SD Access Point Step 5 Attach the junction box to the chassis with a 1 2 NTP Male to Male connector See Figure 3 16 and Figure 3 17 Figure 3 16 ERT50 Junction Box Assembly Step 6 Route the power cable and the fiber cable through the junction box using Figure 3 17 as an example 1 ERT50 Junction Box 2 AC DC Port 3 5 8 24 Port ...

Page 82: ...us Locations Installation Details for the 1552SA and 1552SD Access Point Figure 3 17 Routing Detail Step 7 Complete the connections inside the 1552 as shown in Figure 3 18 Figure 3 18 Inside Connectivity 1 ERT50 Junction Box 2 ERT50 Junction Box Cover removed 3 1 2NPT 4 Power Cable 5 Fiber Cable 6 1 2NPT 7 1 2NPT 8 1 2NPT Male to Male ...

Page 83: ... Installation Details for the 1552WU Access Point Note There are differences in the port adapter sizes and threading between the different models Be sure to review the connector details for the access point model you are installing in Connectors page 1 7 Note The 1552WU does not support Fiber therefore there are no separate installation details for this model If installing the 1552WU with a Wirele...

Page 84: ...Point To reboot power cycle the access point follow these steps Step 1 Use a Phillips screwdriver to remove the reset button screw Figure 3 19 Be careful not to lose the screw Step 2 Use a straightened paperclip and push the reset button for less than 10 seconds This action causes the access point to reboot power cycle all LEDs to turn off for approximately 5 seconds and then the LEDs to reactivat...

Page 85: ... AC branch circuit powering the access point must be limited to no more than 20A from the over protection device supplied by the user This branch power protection must meet all local and national electrical codes The 1552 access point for hazardous locations can be connected to more than one power source The access point detects the available power sources and switches to the preferred power sourc...

Page 86: ...AWG or larger telecommunication line cord Statement 1023 Use only the 1500 power injector AIR PWRINJ1500 2 for the access point This power injector is designed to meet the power requirements of the access point and is a listed Class 2 limited power source LPS Note The installer is responsible for ensuring that powering the access point from this type of power injector is allowed by local and or na...

Page 87: ...led when the access point is powered by the power injector RJ 45 connector and installation tool Adjustable wrench To connect the shielded Ethernet cable to the access point follow these steps Step 1 Disconnect power to the power injector and ensure all power sources to the access point are turned off Warning This unit might have more than one power supply connection All connections must be remove...

Page 88: ...t The installer must use cable glands and or adapters appropriate to the installation Step 5 Insert the unterminated end of the Ethernet cable into the round end of the liquid tight adapter see Figure 3 21 and pull several inches of cable through the adapter Step 6 Install an RJ 45 connector on the unterminated end of the Ethernet cable using your Ethernet cable installation tool Warning To reduce...

Page 89: ...u apply power to the access point Step 12 Route your Ethernet cable and cut off any excess cable Step 13 Install an RJ 45 connector on the unterminated cable end and insert it into the power injector For typical installation components see Chapter 2 Components in a Typical Access Point Installation Step 14 Turn on power to the power injector Connecting a 24 VDC Power Cable to the Access Point Caut...

Page 90: ...erminal strip screw and square washer for connection labeled RTN Connect DC return line to terminal strip location labeled RTN Tighten terminal strip screw to secure ring terminal and wire Step 5 Remove terminal strip screw and square washer for connection labeled 24 VDC IN Connect 24 VDC hot line to terminal strip location labeled 24 VDC IN Tighten terminal strip screw to secure ring terminal and...

Page 91: ...AP1552H x K9 AIR CAP1552SA SD x K9 and AIR CAP1552WU A K9 Access Point Configurations section on page D 22 for Power distribution details To route and connect the ground and AC power cabling to the 1552H or 1552SA access point model follow these steps Warning When installing or replacing the unit the ground connection must always be made first and disconnected last Statement 1046 Caution Always in...

Page 92: ...to secure the connection 1 Customer supplied 1 2 NPT Pipe North American ATEX or sheathed cable ATEX only 4 AC Entry Cover Loosen the captive screws 3x to open cover Reattach after harness has been installed 2 Customer supplied harness 5 Terminal block 3 Attach GND wire to terminal ring Attach terminal ring to chassis as shown Notes 1 The installer integrator is responsible for supplying the appro...

Page 93: ...ducted in order to ensure that the access point is operating satisfactory This section provides information about performing maintenance on an access point installed in a hazardous location Additional maintenance information can be found in Chapter 4 Troubleshooting and the Troubleshooting a Mesh Network Guide The troubleshooting document is available at cisco com at the following URL http www cis...

Page 94: ...oint uses the Cisco Adaptive Wireless Path Protocol AWPP to bind to another mesh access point MAP with the best path to a root access point RAP connected to the wired network to a controller The access point sends a discovery request when powered up If you have configured the access point in the controller correctly the controller sends back a discovery response to the access point When that happe...

Page 95: ... Technical Support and Documentation website at the following URL http www cisco com cisco web support index html Sections in this chapter include Guidelines for Using the Access Points page 4 82 Controller MAC Filter List page 4 83 Using DHCP Option 43 page 4 84 Monitoring the Access Point LEDs page 4 84 Verifying Controller Association page 4 85 Changing the Bridge Group Name page 4 86 Connectin...

Page 96: ...is reachable by your access points and has been configured with Option 43 Option 43 provides the IP addresses of the management interfaces of your controllers Typically a DHCP server can be configured on a Cisco switch Optionally a DNS server can be configured to enable CISCO CAPWAP CONTROLLER Use local domain to resolve to the IP address of the management interface of your controller Your control...

Page 97: ... associated to an access point It does not assign an IP address to other devices MAP Data Traffic If the signal on the access point backhaul channel has a high signal to noise ratio it is possible for a MAP to connect to the controller via parent node but not be able to pass data traffic such as pinging the access point This can occur because the default data rate for backhaul control packets is s...

Page 98: ... is not working properly look at the LEDs on the bottom of the unit You can use them to quickly assess the status of the unit Figure 4 1 shows the location of the access point LEDs Figure 4 1 Access Point LEDs Shown on the Bottom of Model AIR CAP1552SA SD x K9 Note It is expected that there will be small variations in LED color intensity and hue from unit to unit This is within the normal range of...

Page 99: ...ly is initially turned on all LEDs are amber Meaning Status Black No power applied or LED off Steady green Access point is operational Blinking green Download or upgrade of Cisco IOS image file in progress Steady amber Mesh neighbor access point discovery in progress Blinking amber Mesh authentication in progress Blinking red green amber CAPWAP discovery in progress Steady red Firmware failure Con...

Page 100: ...wards the RAP If you start configuring the BGN in a different location then the access points beyond this point farther away are dropped as they have a different BGN MAPS with unconfigured BGNs will periodically join to RAPs with configured BGNs This prevents the stranding of MAPs To configure the BGN for the access points using the controller GUI follow these steps Step 1 Log into your controller...

Page 101: ...or the terminal emulator connection 9600 baud 8 data bits no parity 1 stop bit and no flow control Step 3 When finished remove your serial cable and close the hinged cover see the Working with the Access Point Hinged Cover section on page 3 58 for instructions Access Point Power Injector The power injector AIR PWRINJ1500 2 has three LEDs on the front end of the case see Figure 4 3 For detailed inf...

Page 102: ...or AIR PWRINJ1500 2 is not certified for installation within hazardous locations environments Figure 4 3 Power Injector Connectors and LEDs 1 Mounting tabs 4 AC POWER LED 2 AP POWER LED 5 TO AP Ethernet connector RJ 45 to access point 10 100 1000BASE T 3 FAULT LED 6 TO SWITCH Ethernet connector RJ 45 to switch 10 100 1000BASE T 211485 231484 1 1 2 3 4 5 6 ...

Page 103: ...de the following status information AP POWER Turns solid green after successful discovery indicates that power injector is supplying power to the access point FAULT Turns solid red when a fault occurs during discovery mode or power up Check Ethernet cables and connections before contacting your support organization for assistance AC POWER Turns solid green when power injector is receiving AC power...

Page 104: ...4 90 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Chapter 4 Troubleshooting Access Point Power Injector ...

Page 105: ...nt on Cisco com follow these steps Step 1 Click this link and go to the Cisco Wireless documentation home page http www cisco com en US products hw wireless index html Step 2 Click Support and the Support and Documentation page displays Step 3 Click Wireless in the Find Product Support column Step 4 Click 1550 Step 5 Click Install and Upgrade Step 6 Click Install and Upgrade Guides Step 7 Click Tr...

Page 106: ...A 2 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Appendix A Translated Safety Warnings ...

Page 107: ...ndix contains the following sections Manufacturers Federal Communication Commission Declaration of Conformity Statement page B 4 Industry Canada page B 5 European Community Switzerland Norway Iceland and Liechtenstein page B 6 Declaration of Conformity for RF Exposure page B 8 Guidelines for Operating Cisco Aironet Access Points in Japan page B 9 VCCI Statement for Japan page B 10 Administrative R...

Page 108: ...residential environment This equipment generates uses and radiates radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference However there is no guarantee that interference will not occur If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is enc...

Page 109: ...ontact your local Industry Canada office The 1552H device has been designed to operate with antennas having a maximum gain of 4 dBi for 2 4 GHz and 7 dBi for 5 GHz Antennas having a gain greater are strictly prohibited for use with this device The required antenna impedance is 50 ohms The 1552SA 1552SD device has been designed to operate with antennas having a maximum gain of 4 dBi for 802 11 and ...

Page 110: ...irmware not provided and supported by Cisco Systems may result in the equipment no longer being compliant with the regulatory requirements The following standards were applied EMC EN 301 489 1 v1 8 1 EN 301 489 17 v2 1 1 Health Safety EN60950 1 2005 EN 50385 2002 Radio EN 300 328 v 1 7 1 EN 301 893 v 1 5 1 The conformity assessment procedure referred to in Article 10 4 and Annex III of Directive 1...

Page 111: ... Cisco Aironet Access Points in Brazil This section contains special information for operation of Cisco Aironet access points in Brazil Access Point Models AIR CAP1552H E K9 AIR CAP1552SA E K9 AIR CAP1552SD E K9 AIR CAP1552WU E K9 Regulatory Information Figure 1 contains Brazil regulatory information for the access point models identified in the previous section Figure 1 Brazil Regulatory Informat...

Page 112: ...nimum separation distance from the antenna to general bystander is 7 9 inches 20cm to maintain compliance European Union This system has been evaluated for RF exposure for Humans in reference to the ICNIRP International Commission on Non Ionizing Radiation Protection limits The evaluation was based on the EN 50385 Product Standard to Demonstrate Compliance of Radio Base stations and Fixed Terminal...

Page 113: ...me frequency bandwidth as industrial scientific and medical devices such as microwave ovens and mobile object identification RF ID systems licensed premises radio stations and unlicensed specified low power radio stations used in factory production lines 1 Before using this equipment make sure that no premises radio stations or specified low power radio stations of RF ID are used in the vicinity 2...

Page 114: ...equipment 2 This model uses the following cable gland blind plug for the input output port of this unit TIIS Certified parts as of Jan 2017 For Cable ground of Fiber Port and PoE port Cable Grand Ceftec Electric Co Ltd SFGU 10 M ES Blind plug Ceftec Electric Co Ltd PXN10 M20 3 Do not attach detach the antenna in an explosive atmosphere or in a dangerous place VCCI Statement for Japan Warning This ...

Page 115: ...d Regulatory Information Administrative Rules for Cisco Aironet Access Points in Taiwan Administrative Rules for Cisco Aironet Access Points in Taiwan This section provides administrative rules for operating Cisco Aironet Access Points in Taiwan The rules are provided in both Chinese and English Chinese Translation ...

Page 116: ...d the user must stop operating the device immediately and can t re operate it until the harmful interference is clear The authorized radio station means a radio communication service operating in accordance with the Communication Act The operation of the low power radio frequency devices is subject to the interference caused by the operation of an authorized radio station by another intentional or...

Page 117: ...signated connection cables power cables AC adapters Using any other cables adapters could cause a malfunction or a fire Electrical Appliance and Material Safety Law prohibits the use of UL certified cables that have the UL shown on the code for any other electrical devices than products designated by CISCO The use of cables that are certified by Electrical Appliance and Material Safety Law that ha...

Page 118: ...arations of Conformity and Regulatory Information Administrative Rules for Cisco Aironet Access Points in Taiwan Chinese Translation EU Declaration of Conformity All the Declaration of Conformity statements related to this product can be found at the following location http www ciscofax com ...

Page 119: ...ireless documentation page of Cisco com To browse to the document follow these steps Step 1 Click this link and go to the Cisco Wireless documentation home page http www cisco com en US products hw wireless index html Step 2 Click Support The Support and Documentation page displays Step 3 Click Wireless Step 4 Click 1550 Step 5 Click Install and Upgrade Step 6 Click Install and Upgrade Guides Step...

Page 120: ...C 16 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Appendix C Channels and Power Levels ...

Page 121: ...1552WU 17 6 lbs 8 kg Pole mounting bracket 6 1 lbs 2 8 kg Connector 1552H Three Type N antenna connectors for 2 4 GHz radio and 5 GHz 802 11n radio depends on configuration 1552S Five Type N antenna connectors for 2 4 GHz radio and 5 GHz 802 11n radio depends on configuration 1552WU Seven Type N antenna connectors for 2 4 GHz radio and 5 GHz 802 11n radio depends on configuration 1552S Two Type N ...

Page 122: ...0 condensing access point operating and nonoperating Power injector 10 to 90 noncondensing power injector operating Data rates 802 11a 6 9 12 18 24 36 48 and 54 Mbps 802 11b 1 2 5 5 and 11 Mbps 802 11g 6 9 12 18 24 36 48 and 54 Mbps 802 11n data rates 2 4 GHz and 5 GHz refer to Table D 3 for data rates Environmental ratings IP67 1552H 1552SA 1552SD and 1552WU NEMA Type 4X 1552H and 1552SA 1552SD N...

Page 123: ... dBm with 2 antennas 5 GHz 802 11a 28 dBm with 2 antennas 802 11n non HT duplicate 802 11a duplicate mode 28 dBm with 2 antennas 802 11n HT20 27 dBm with 2 antennas 802 11n HT40 27 dBm with 2 antennas Note Maximum output depends on the regulatory domain in which the access point is installed For additional information refer to the Appendix C Channels and Power Levels Table D 1 Access Point Specifi...

Page 124: ...channels E Domain 2 401 to 2 4835 GHz 13 channels 5 470 to 5 725 GHz 8 channels K Domain 2 400 to 2 4835 GHz 11 channels 5 250 to 5 825 GHz 14 channels M Domain 2 400 to 2 4835 GHz 13 channels 5 470 to 5 850 GHz 12 channels N Domain 2 400 to 2 4835 GHz 11 channels 5 725 to 5 850 GHz 5 channels Q Domain 2 400 to 2 4835 GHz 13 channels 5 470 to 5 725 GHz 11 channels R Domain 2 400 to 2 4835 GHz 13 c...

Page 125: ...Field Immunity EN61000 4 2 Level 4 ESD Immunity Safety IEC 60950 1 UL 60950 1 CSA 60950 1 EN 60950 1 Hazardous Locations ANSI ASA 12 12 01 UL 60079 0 UL 60079 15 CSA C22 2 No 213 M1987 CAN CSA E60079 15 0 EN 60079 0 EN 60079 15 IEC 60079 0 IEC 60079 15 Note For more information about Hazardous Location Specifications see Compliance page 2 38 Radio approvals FCC Parts 15 247 90 210 FCC Bulletin OET...

Page 126: ...EN 55022 A EN 60601 1 2 2001 AS NZS 3548 Class A VCCI Class A EN 301 489 1 EN 301 489 17 EMI and susceptibility 1552WU FCC part 15 107 15 109 ICES 003 EN 301 489 1 17 Table D 1 Access Point Specifications continued Category Specifications Table D 2 Power Consumption Budget for the AIR CAP1552H x K9 AIR CAP1552SA SD x K9 and AIR CAP1552WU A K9 Access Point Configurations Element Nominal H S Power W...

Page 127: ...2 800ns GI 400ns 20 MHz Rate Mbps 40 MHz Rate Mbps 20 MHz Rate Mbps 40 MHz Rate Mbps 0 6 5 13 5 7 2 15 1 13 27 14 4 30 2 19 5 40 5 21 7 45 3 26 54 28 9 60 4 39 81 43 3 90 5 52 108 57 8 120 6 58 5 121 5 65 135 7 65 135 72 2 150 8 13 27 14 4 30 9 26 54 28 9 60 10 39 81 43 3 90 11 52 108 57 8 120 12 78 162 86 7 180 13 104 216 115 6 240 14 117 243 130 270 15 130 270 144 4 300 ...

Page 128: ...D 24 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Appendix D Access Point Specifications ...

Page 129: ... Access Point PoE Out Ethernet Connector Pinouts Pin Number Signal Name 1 Ethernet signal pair 10 100 1000BASE T 2 3 Ethernet signal pair 10 100 1000BASE T 6 4 Ethernet signal pair 10 100 1000BASE T and 48 VDC 5 7 Ethernet signal pair 10 100 1000BASE T and 48 VDC return 8 Shield Chassis ground Table E 2 Access Point PoE In Ethernet Connector Pinouts Pin Number Signal Name 1 Ethernet signal pair 10...

Page 130: ...550 PoE In connector Table E 3 Power Injector Input Connector To Switch Pinouts Pin Number Signal Name 1 Ethernet signal pair 10 100 1000BASE T 2 3 Ethernet signal pair 10 100 1000BASE T 6 4 Ethernet signal pair 1000BASE T 5 7 Ethernet signal pair 1000BASE T 8 Shield Chassis ground Table E 4 Power Injector Output Connector To AP Pinouts Pin Number Signal Name 1 Ethernet signal pair 10 100 1000BASE...

Page 131: ... describes the steps needed to configure DHCP Option 43 on a DHCP server such as a Cisco Catalyst 3750 series switch for use with Cisco Aironet Hazardous Location Access Points This appendix contains these sections Overview page F 28 Configuring Option 43 for 1100 1130 1200 1240 1250 1300 1520 and 1550 Series Access Points page F 29 ...

Page 132: ...ass Identifier VCI string DHCP Option 60 The VCI strings for Cisco access points that can operate in lightweight mode are listed in Table F 1 The following is the format of the TLV block for 1100 1130 1200 1240 1250 1300 1520 and 1552 access points Type 0xf1 decimal 241 Length Number of controller IP addresses 4 Value List of WLC management interfaces Table F 1 Lightweight Access Point VCI Strings...

Page 133: ...sides such as 10 0 15 1 Netmask is the subnet mask such as 255 255 255 0 Default router is the IP address of the default router such as 10 0 0 1 DNS Server is the IP address of the DNS server such as 10 0 10 2 Step 3 Add the Option 60 line using the following syntax option 60 ascii VCI string For the VCI string use the value from Table F 1 The quotation marks must be included Step 4 Add the Option...

Page 134: ...F 30 Cisco Aironet 1552 Series for Hazardous Locations Installation Guide Appendix F Configuring DHCP Option 43 Configuring Option 43 for 1100 1130 1200 1240 1250 1300 1520 and 1550 Series Access Points ...

Page 135: ...a modulation technique used by IEEE 802 11b compliant wireless LANs for transmission at 1 Mb s C CAPWAP Control And Provisioning of Wireless Access Points CCK Complementary Code Keying A modulation technique used by IEEE 802 11b compliant wireless LANs for transmission at 5 5 and 11 Mb s CCKM Cisco Centralized Key Management Using CCKM authenticated client devices can roam from one access point to...

Page 136: ...e spread spectrum A type of spread spectrum radio transmission that spreads its signal continuously over a wide frequency band E EAP Extensible Authentication Protocol An optional IEEE 802 1x security feature ideal for organizations with a large user base and access to an EAP enabled Remote Authentication Dial In User Service RADIUS server I infrastructure The wired Ethernet network isotropic An a...

Page 137: ...used by IEEE 802 11b compliant wireless LANs for transmission at 2 Mb s R range A linear measure of the distance that a transmitter can send a signal RAP Root Access Point receiver sensitivity A measurement of the weakest signal a receiver can receive and still correctly translate it into data RF Radio frequency A generic term for radio based technology RP TNC A connector type unique to Cisco Airo...

Page 138: ...the 5 725 to 5 825 GHz frequency band unicast packet A single data message packet sent to a specific IP address W WDS Wireless Domain Services An access point providing WDS on your wireless LAN maintains a cache of credentials for CCKM capable client devices on your wireless LAN When a CCKM capable client roams from one access point to another the WDS access point forwards the client s credentials...

Page 139: ...teroperable security enhancement that strongly increases the level of data protection and access control for existing and future wireless LAN systems It is derived from and will be forward compatible with the upcoming IEEE 802 11i standard WPA leverages TKIP Temporal Key Integrity Protocol for data protection and 802 1X for authenticated key management ...

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